n.a temporary bridge for getting on and off a vessel at dockside
同义词：gangplankgangboardgangway
英汉双解大词典
gangplank/ˈɡæŋˌplæŋk/(gangplanks)
1.
N-COUNT（可数名词） Thegangplank is a short bridge or platform that can be placed between the side of a ship or boat and the shore, so that people can get on or off. (上下船用的)跳板 [usu 'the' N in sing]